JP3139575U - Cutting and winding device for running web - Google Patents

Abstract

An object of the present invention is to cut a winding end of a web that has been cut without stopping the running of the web in a winding operation when rewinding a web that has been subjected to adhesive treatment on one side. Wrap it securely.
In a cutting winding in which a web W having an adhesive treatment applied to one side is continuously wound around a core 1 at a predetermined length, the web W having an adhesive surface attached to the core is running. The guide bar 3 is peeled off from the core 1 at the tip, and then the cutting blade 4 is run through the gap between the guide bar 3 and the core 1 to cut the web W while it is running, and the cut The cut end of the core side web is attached to the core 1 by rotation of a high speed rotating brush.
[Selection] Figure 1

Description

  The present invention is a winder that continuously feeds a web, which has been subjected to an adhesive treatment on one side, to a core at a certain length, which is sent from the previous process, without stopping the running of the web. The present invention relates to a cutting and winding apparatus for a running web that is cut and wound around a winding core.

  When winding the web sent from the previous process, the web sent from the previous process is usually wound around the core via a touch roller at regular lengths and then rewinded by pressing it with a presser roller. However, conventionally, in this rewinding, an adhesive tape is attached to the surface of the core, and the web on the way from the fully wound roll wound with a certain length to the new core is wound around the new core. And cutting with a cutting blade and winding the tip of the cut web around a new core. In order to cut the web at the time of rewinding, the web in the middle from the core to the guide roller was cut with a cutter, and the tip of the cut web was wound around the new core. However, even if the above-mentioned cutting does not damage the core, the cut web tip has no guide, so it will be moved to the core side and it will be wrinkled, or air will adhere to the part Has a problem that it becomes a trace on the web wrapping part and becomes a defective product, which has the disadvantage that it tends to be a defective product, especially on webs with adhesive on one side, soft webs, and stretchable webs. .

Therefore, the present applicant previously provided a guide plate capable of winding more than 5/6 rounds on the surface of the new core, wound the web around the new core with the guide plate, and cut the tip of the cut web. We proposed a cutting and winding device that prevents wrinkles and folding. (For example, see Patent Document 1)
However, in the above-described cutting and winding apparatus, when the web to be sent is one in which the adhesive treatment is performed on one side, the adhesive side of the web is attached to the core, and the web is pushed in and wound around the new core. Since it is cut by the cutting blade in the attached state, there is a problem that the cut end is floated or air bites and wrinkles are likely to occur. For this reason, the present inventors have found the installation of a squeezing bar that presses the cut end of the web after cutting, so that the core side cut end of the web after cutting in the cutting winding of the web that has been subjected to adhesion treatment on one side can be found. A separate proposal was made to ensure that the tape was attached and to wind the core without air bites and wrinkles.
JP 2003-89457 A

  However, in the cutting winding with the ironing bar according to the above proposal, due to the action of the ironing bar, the fed web must be temporarily stopped and cut, so that the cutting end floating from the winding core is pressed and the winding core is pressed. Even though it could be wound without air bites and wrinkles, it encountered a problem that it could not be used when cutting without stopping the running of the web.

  The present invention copes with the situation as described above, and in order to cope with this situation, in place of the iron bar, by finding an appropriate cutting end sticking means for the running web, the winding wound with respect to cutting and winding while the web is running. The purpose is to ensure that the floating portion of the cut end of the core side web is wrapped around the cut end with an air bite and without wrinkles.

  That is, the present invention for achieving the above-described object is provided in a winder that continuously feeds a web, which has been subjected to an adhesive treatment on one side, sent from a previous process onto a core at predetermined lengths. Provided with a guide bar that peels the web whose surface is attached to the core from the core at the tip, and provided with a cutting blade for cutting the web in the gap between the guide bar and the core. A high-speed rotating brush for attaching the cut end of the core-side web to the core is provided.

  Applying adhesive to the web surface using the above-mentioned device of the present invention, and when the web subjected to adhesive treatment is continuously cut and wound around the core without stopping running, the web is running For this reason, even if the tip becomes slanted due to traverse cut and this tip floats from the core, it is stuck to the surface of the core by the rotation of the high-speed rotating brush and does not float from the core, and air clogging and wrinkles occur. No wrapping can be performed reliably.

  Hereinafter, specific embodiments of the cutting and winding apparatus of the present invention will be described with reference to the accompanying drawings. FIG. 1 shows an outline of the main part of the device according to the present invention. A web W coated with an adhesive on one side (surface) sent from the previous process and subjected to an adhesion treatment a is pressed with a press roller 2, a core 1 and the like. Although not shown in the drawing, the full winding roller moves to the next process as the turret rotates, and the web is moved between the full winding roller and the new winding core. Cutting and winding the subsequent web around the new core is the same as in conventional web cutting and winding.

  The device of the present invention is the winding of the cut core-side web cut end between the full roll and the new core around the new core, as shown in the new core 1 (hereinafter simply referred to as the core). A guide bar 3 is provided to peel off the web that has been subjected to adhesion treatment a on the one side that is circumscribed as shown in FIG. A cutting blade 4 that traverses and traverses the web without traversing is provided in the gap so as to freely advance and retreat.

  In the cutting with the cutting blade 4, the tip of the cut web is inclined as shown in FIG. 2 (b) for traverse cutting while the web is running, and a floating portion b is formed. Therefore, it is necessary to sequentially wind the floating portions around the core 1, and therefore, the cut end b floating from the core is pasted by the pasting means.

  FIG. 3 shows a sticking means which is a feature of the present invention in the above-described cutting. A high-speed brush 5 that rotates at a speed of 3 to 5 times the web speed is provided, and this is rotated at a high speed in a direction opposite to the rotation direction of the core. 1 is pasted.

  In performing cutting and winding using the device of the present invention, first, the web sent from the previous process is wound around the core 1, and the web W is wound around the core 1 by the tip of the guide bar 3 when the required range is wound. More peel. Then, the web is traversed by the cutting blade 4 in the gap between the guide bar tip and the core without stopping the web feed while traveling. When the traveling web is cut by traverse cutting in this way, the cut tip is inclined and a floating portion b is generated as shown in FIG. Therefore, following the cutting with the cutting blade, the above-mentioned sticking means, that is, the high-speed brush is rotated in the direction opposite to the direction of rotation of the core, thereby securely sticking to the core 1 and completing a series of steps of cutting and winding. .

  Thus, the cut end of the cut core-side web is held by the high-speed rotating brush, which is the feature of the present invention, and the cut end floating from the core is held by the core-side guide bar. Can be wound. The present invention is particularly effective for a web whose one side has been subjected to an adhesive treatment or has self-adhesive properties, and is particularly suitable for a web used for a liquid crystal screen which requires recent high quality.

It is a principal part schematic diagram which shows one example of this invention cutting and winding apparatus. (A) and (B) are explanatory views showing a state in which the cut end is floating in the cutting according to the present invention. (A), (b) is a schematic explanatory view showing the mode of cutting and winding according to the present invention.

Explanation of symbols

1: Winding core 2: Presser roller 3: Guide bar 4: Cutting blade 5: High-speed rotating brush

Claims (1)

  In a winding machine that continuously feeds a web that has been subjected to adhesive treatment on one side to a core at a certain length, sent from the previous process, the web with the adhesive surface affixed to the core is the tip of the web. A guide bar that peels off from the core is provided at the section, and a cutting blade that cuts the web is disposed in the gap between the guide bar and the core, and the cut end of the cut core-side web is attached to the core. An apparatus for cutting and winding a running web, comprising a high-speed rotating brush.

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